[mirror_ubuntu-jammy-kernel.git] / arch / arm / mach-mx3 / mx31moboard.c

/*
 *  Copyright (C) 2008 Valentin Longchamp, EPFL Mobots group
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/memory.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/partitions.h>
#include <linux/platform_device.h>
#include <linux/types.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/mach/map.h>
#include <mach/board-mx31moboard.h>
#include <mach/common.h>
#include <mach/hardware.h>
#include <mach/imx-uart.h>
#include <mach/iomux-mx3.h>
#include <mach/i2c.h>
#include <mach/mmc.h>

#include "devices.h"

static unsigned int moboard_pins[] = {
	/* UART0 */
	MX31_PIN_CTS1__CTS1, MX31_PIN_RTS1__RTS1,
	MX31_PIN_TXD1__TXD1, MX31_PIN_RXD1__RXD1,
	/* UART4 */
	MX31_PIN_PC_RST__CTS5, MX31_PIN_PC_VS2__RTS5,
	MX31_PIN_PC_BVD2__TXD5, MX31_PIN_PC_BVD1__RXD5,
	/* I2C0 */
	MX31_PIN_I2C_DAT__I2C1_SDA, MX31_PIN_I2C_CLK__I2C1_SCL,
	/* I2C1 */
	MX31_PIN_DCD_DTE1__I2C2_SDA, MX31_PIN_RI_DTE1__I2C2_SCL,
	/* SDHC1 */
	MX31_PIN_SD1_DATA3__SD1_DATA3, MX31_PIN_SD1_DATA2__SD1_DATA2,
	MX31_PIN_SD1_DATA1__SD1_DATA1, MX31_PIN_SD1_DATA0__SD1_DATA0,
	MX31_PIN_SD1_CLK__SD1_CLK, MX31_PIN_SD1_CMD__SD1_CMD,
	MX31_PIN_ATA_CS0__GPIO3_26, MX31_PIN_ATA_CS1__GPIO3_27,
};

static struct physmap_flash_data mx31moboard_flash_data = {
	.width  	= 2,
};

static struct resource mx31moboard_flash_resource = {
	.start	= 0xa0000000,
	.end	= 0xa1ffffff,
	.flags	= IORESOURCE_MEM,
};

static struct platform_device mx31moboard_flash = {
	.name	= "physmap-flash",
	.id	= 0,
	.dev	= {
		.platform_data  = &mx31moboard_flash_data,
	},
	.resource = &mx31moboard_flash_resource,
	.num_resources = 1,
};

static struct imxuart_platform_data uart_pdata = {
	.flags = IMXUART_HAVE_RTSCTS,
};

static struct imxi2c_platform_data moboard_i2c0_pdata = {
	.bitrate = 400000,
};

static struct imxi2c_platform_data moboard_i2c1_pdata = {
	.bitrate = 100000,
};

#define SDHC1_CD IOMUX_TO_GPIO(MX31_PIN_ATA_CS0)
#define SDHC1_WP IOMUX_TO_GPIO(MX31_PIN_ATA_CS1)

static int moboard_sdhc1_get_ro(struct device *dev)
{
	return !gpio_get_value(SDHC1_WP);
}

static int moboard_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
		void *data)
{
	int ret;

	ret = gpio_request(SDHC1_CD, "sdhc-detect");
	if (ret)
		return ret;

	gpio_direction_input(SDHC1_CD);

	ret = gpio_request(SDHC1_WP, "sdhc-wp");
	if (ret)
		goto err_gpio_free;
	gpio_direction_input(SDHC1_WP);

	ret = request_irq(gpio_to_irq(SDHC1_CD), detect_irq,
		IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
		"sdhc1-card-detect", data);
	if (ret)
		goto err_gpio_free_2;

	return 0;

err_gpio_free_2:
	gpio_free(SDHC1_WP);
err_gpio_free:
	gpio_free(SDHC1_CD);

	return ret;
}

static void moboard_sdhc1_exit(struct device *dev, void *data)
{
	free_irq(gpio_to_irq(SDHC1_CD), data);
	gpio_free(SDHC1_WP);
	gpio_free(SDHC1_CD);
}

static struct imxmmc_platform_data sdhc1_pdata = {
	.get_ro	= moboard_sdhc1_get_ro,
	.init	= moboard_sdhc1_init,
	.exit	= moboard_sdhc1_exit,
};

static struct platform_device *devices[] __initdata = {
	&mx31moboard_flash,
};

static int mx31moboard_baseboard;
core_param(mx31moboard_baseboard, mx31moboard_baseboard, int, 0444);

/*
 * Board specific initialization.
 */
static void __init mxc_board_init(void)
{
	mxc_iomux_setup_multiple_pins(moboard_pins, ARRAY_SIZE(moboard_pins),
		"moboard");

	platform_add_devices(devices, ARRAY_SIZE(devices));

	mxc_register_device(&mxc_uart_device0, &uart_pdata);
	mxc_register_device(&mxc_uart_device4, &uart_pdata);

	mxc_register_device(&mxc_i2c_device0, &moboard_i2c0_pdata);
	mxc_register_device(&mxc_i2c_device1, &moboard_i2c1_pdata);

	mxc_register_device(&mxcsdhc_device0, &sdhc1_pdata);

	switch (mx31moboard_baseboard) {
	case MX31NOBOARD:
		break;
	case MX31DEVBOARD:
		mx31moboard_devboard_init();
		break;
	case MX31MARXBOT:
		mx31moboard_marxbot_init();
		break;
	default:
		printk(KERN_ERR "Illegal mx31moboard_baseboard type %d\n",
			mx31moboard_baseboard);
	}
}

static void __init mx31moboard_timer_init(void)
{
	mx31_clocks_init(26000000);
}

struct sys_timer mx31moboard_timer = {
	.init	= mx31moboard_timer_init,
};

MACHINE_START(MX31MOBOARD, "EPFL Mobots mx31moboard")
	/* Maintainer: Valentin Longchamp, EPFL Mobots group */
	.phys_io	= AIPS1_BASE_ADDR,
	.io_pg_offst	= ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
	.boot_params    = PHYS_OFFSET + 0x100,
	.map_io         = mx31_map_io,
	.init_irq       = mxc_init_irq,
	.init_machine   = mxc_board_init,
	.timer          = &mx31moboard_timer,
MACHINE_END
Commit	Line	Data
988d2d49 VL	1	/*
	2	* Copyright (C) 2008 Valentin Longchamp, EPFL Mobots group
	3	*
	4	* This program is free software; you can redistribute it and/or modify
	5	* it under the terms of the GNU General Public License as published by
	6	* the Free Software Foundation; either version 2 of the License, or
	7	* (at your option) any later version.
	8	*
	9	* This program is distributed in the hope that it will be useful,
	10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	* GNU General Public License for more details.
	13	*
	14	* You should have received a copy of the GNU General Public License
	15	* along with this program; if not, write to the Free Software
	16	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	17	*/
	18
45b131a7	19	#include <linux/gpio.h>
988d2d49	20	#include <linux/init.h>
45b131a7	21	#include <linux/interrupt.h>
220bbcea	22	#include <linux/memory.h>
988d2d49 VL	23	#include <linux/mtd/physmap.h>
988d2d49 VL	24	#include <linux/mtd/partitions.h>
220bbcea VL	25	#include <linux/platform_device.h>
220bbcea VL	26	#include <linux/types.h>
988d2d49	27
988d2d49 VL	28	#include <asm/mach-types.h>
	29	#include <asm/mach/arch.h>
	30	#include <asm/mach/time.h>
	31	#include <asm/mach/map.h>
220bbcea	32	#include <mach/board-mx31moboard.h>
988d2d49	33	#include <mach/common.h>
220bbcea	34	#include <mach/hardware.h>
988d2d49 VL	35	#include <mach/imx-uart.h>
988d2d49 VL	36	#include <mach/iomux-mx3.h>
4ec6ecc7	37	#include <mach/i2c.h>
45b131a7	38	#include <mach/mmc.h>
988d2d49 VL	39
	40	#include "devices.h"
	41
220bbcea VL	42	static unsigned int moboard_pins[] = {
	43	/* UART0 */
	44	MX31_PIN_CTS1__CTS1, MX31_PIN_RTS1__RTS1,
	45	MX31_PIN_TXD1__TXD1, MX31_PIN_RXD1__RXD1,
	46	/* UART4 */
	47	MX31_PIN_PC_RST__CTS5, MX31_PIN_PC_VS2__RTS5,
	48	MX31_PIN_PC_BVD2__TXD5, MX31_PIN_PC_BVD1__RXD5,
56c7a45b VL	49	/* I2C0 */
	50	MX31_PIN_I2C_DAT__I2C1_SDA, MX31_PIN_I2C_CLK__I2C1_SCL,
	51	/* I2C1 */
	52	MX31_PIN_DCD_DTE1__I2C2_SDA, MX31_PIN_RI_DTE1__I2C2_SCL,
	53	/* SDHC1 */
	54	MX31_PIN_SD1_DATA3__SD1_DATA3, MX31_PIN_SD1_DATA2__SD1_DATA2,
	55	MX31_PIN_SD1_DATA1__SD1_DATA1, MX31_PIN_SD1_DATA0__SD1_DATA0,
	56	MX31_PIN_SD1_CLK__SD1_CLK, MX31_PIN_SD1_CMD__SD1_CMD,
	57	MX31_PIN_ATA_CS0__GPIO3_26, MX31_PIN_ATA_CS1__GPIO3_27,
220bbcea VL	58	};
220bbcea VL	59
988d2d49 VL	60	static struct physmap_flash_data mx31moboard_flash_data = {
	61	.width = 2,
	62	};
	63
	64	static struct resource mx31moboard_flash_resource = {
	65	.start = 0xa0000000,
	66	.end = 0xa1ffffff,
	67	.flags = IORESOURCE_MEM,
	68	};
	69
	70	static struct platform_device mx31moboard_flash = {
	71	.name = "physmap-flash",
	72	.id = 0,
	73	.dev = {
	74	.platform_data = &mx31moboard_flash_data,
	75	},
	76	.resource = &mx31moboard_flash_resource,
	77	.num_resources = 1,
	78	};
	79
	80	static struct imxuart_platform_data uart_pdata = {
	81	.flags = IMXUART_HAVE_RTSCTS,
	82	};
	83
4ec6ecc7 VL	84	static struct imxi2c_platform_data moboard_i2c0_pdata = {
	85	.bitrate = 400000,
	86	};
	87
	88	static struct imxi2c_platform_data moboard_i2c1_pdata = {
	89	.bitrate = 100000,
	90	};
	91
45b131a7 VL	92	#define SDHC1_CD IOMUX_TO_GPIO(MX31_PIN_ATA_CS0)
	93	#define SDHC1_WP IOMUX_TO_GPIO(MX31_PIN_ATA_CS1)
	94
	95	static int moboard_sdhc1_get_ro(struct device *dev)
	96	{
563abb4b	97	return !gpio_get_value(SDHC1_WP);
45b131a7 VL	98	}
	99
	100	static int moboard_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
	101	void *data)
	102	{
4f163eb8 SH	103	int ret;
	104
	105	ret = gpio_request(SDHC1_CD, "sdhc-detect");
	106	if (ret)
	107	return ret;
	108
	109	gpio_direction_input(SDHC1_CD);
	110
	111	ret = gpio_request(SDHC1_WP, "sdhc-wp");
	112	if (ret)
	113	goto err_gpio_free;
	114	gpio_direction_input(SDHC1_WP);
	115
	116	ret = request_irq(gpio_to_irq(SDHC1_CD), detect_irq,
45b131a7 VL	117	IRQF_TRIGGER_RISING \| IRQF_TRIGGER_FALLING,
45b131a7 VL	118	"sdhc1-card-detect", data);
4f163eb8 SH	119	if (ret)
	120	goto err_gpio_free_2;
	121
	122	return 0;
	123
	124	err_gpio_free_2:
	125	gpio_free(SDHC1_WP);
	126	err_gpio_free:
	127	gpio_free(SDHC1_CD);
	128
	129	return ret;
45b131a7 VL	130	}
	131
	132	static void moboard_sdhc1_exit(struct device dev, void data)
	133	{
	134	free_irq(gpio_to_irq(SDHC1_CD), data);
4f163eb8 SH	135	gpio_free(SDHC1_WP);
4f163eb8 SH	136	gpio_free(SDHC1_CD);
45b131a7 VL	137	}
	138
	139	static struct imxmmc_platform_data sdhc1_pdata = {
	140	.get_ro = moboard_sdhc1_get_ro,
	141	.init = moboard_sdhc1_init,
	142	.exit = moboard_sdhc1_exit,
	143	};
	144
988d2d49 VL	145	static struct platform_device *devices[] __initdata = {
	146	&mx31moboard_flash,
	147	};
	148
e00f0b4a VL	149	static int mx31moboard_baseboard;
	150	core_param(mx31moboard_baseboard, mx31moboard_baseboard, int, 0444);
	151
988d2d49 VL	152	/*
	153	* Board specific initialization.
	154	*/
	155	static void __init mxc_board_init(void)
	156	{
220bbcea VL	157	mxc_iomux_setup_multiple_pins(moboard_pins, ARRAY_SIZE(moboard_pins),
	158	"moboard");
	159
988d2d49 VL	160	platform_add_devices(devices, ARRAY_SIZE(devices));
988d2d49 VL	161
988d2d49	162	mxc_register_device(&mxc_uart_device0, &uart_pdata);
988d2d49	163	mxc_register_device(&mxc_uart_device4, &uart_pdata);
e00f0b4a	164
4ec6ecc7 VL	165	mxc_register_device(&mxc_i2c_device0, &moboard_i2c0_pdata);
	166	mxc_register_device(&mxc_i2c_device1, &moboard_i2c1_pdata);
	167
45b131a7 VL	168	mxc_register_device(&mxcsdhc_device0, &sdhc1_pdata);
45b131a7 VL	169
e00f0b4a VL	170	switch (mx31moboard_baseboard) {
	171	case MX31NOBOARD:
	172	break;
	173	case MX31DEVBOARD:
	174	mx31moboard_devboard_init();
	175	break;
	176	case MX31MARXBOT:
	177	mx31moboard_marxbot_init();
	178	break;
	179	default:
220bbcea VL	180	printk(KERN_ERR "Illegal mx31moboard_baseboard type %d\n",
220bbcea VL	181	mx31moboard_baseboard);
e00f0b4a	182	}
988d2d49 VL	183	}
988d2d49 VL	184
988d2d49 VL	185	static void __init mx31moboard_timer_init(void)
988d2d49 VL	186	{
30c730f8	187	mx31_clocks_init(26000000);
988d2d49 VL	188	}
	189
	190	struct sys_timer mx31moboard_timer = {
	191	.init = mx31moboard_timer_init,
	192	};
	193
	194	MACHINE_START(MX31MOBOARD, "EPFL Mobots mx31moboard")
	195	/* Maintainer: Valentin Longchamp, EPFL Mobots group */
	196	.phys_io = AIPS1_BASE_ADDR,
	197	.io_pg_offst = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
	198	.boot_params = PHYS_OFFSET + 0x100,
cd4a05f9	199	.map_io = mx31_map_io,
988d2d49 VL	200	.init_irq = mxc_init_irq,
	201	.init_machine = mxc_board_init,
	202	.timer = &mx31moboard_timer,
	203	MACHINE_END
	204